A Marsh Harrier flew over the Slurry Lagoon at about 3.30 p.m. this afternoon.  It was a cream-crown and probably a juvenile bird.  It put up every bird on the Slurry as it flew over the reed beds for some minutes being persued particularly by the Lapwings until they chased it over S.T. land.  However a few minutes later it came back for a second try but again the Lapwings chased it away and this time it flew over the Deep Pit and down the river.  JMD.